ET EXPLOIT Possible Exim 4.87-4.91 RCE Attempt Inbound (CVE-2019-10149)

Query · suricata

flow:established,to_server;
content:"RCPT|20|TO";
content:"|24 7b|run|7b|"; within:12; fast_pattern;
content:"|7d 7d 40|"; distance:0;
Raw source ET EXPLOIT Possible Exim 4.87-4.91 RCE Attempt Inbound (CVE-2019-10149) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert smtp any any -> $SMTP_SERVERS any (
    msg:"ET EXPLOIT Possible Exim 4.87-4.91 RCE Attempt Inbound (CVE-2019-10149)";
    flow:established,to_server;
    content:"RCPT|20|TO";
    content:"|24 7b|run|7b|"; within:12; fast_pattern;
    content:"|7d 7d 40|"; distance:0;
    reference:url,www.qualys.com/2019/06/05/cve-2019-10149/return-wizard-rce-exim.txt;
    classtype:attempted-admin;
    sid:2027442; rev:4;
    metadata:attack_target SMTP_Server, created_at 2019_06_07, cve CVE_2019_10149, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, tag CISA_KEV, updated_at 2020_08_19;
)

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